| Nova Shepton 83 LLP | | 2019 |
| Nova Sherborne 128 LLP | | 2024 |
| Nova Shrewsbury 91 LLP | | 2019 |
| Nova Sidwell 66 LLP | | 2016 |
| Nova Slough 68 LLP | | 2017 |
| Nova Southbourne 31 LLP | | 2012 |
| Nova SPY Glass 60 LLP | | 2016 |
| Nova ST Austell 74 LLP | | 2017 |
| Nova ST Ives 32 LLP | | 2012 |
| Nova ST Nicholas 131 LLP | | 2024 |
| Nova Talbot 36 LLP | | 2013 |
| Nova Taunton 76 LLP | | 2017 |
| Nova Terminus 101 LLP | | 2021 |
| Nova Torquay 51 LLP | | 2015 |
| Nova Treliske 118 LLP | | 2023 |
| Nova Truro 48 LLP | | 2015 |
| Nova Twigworth 121 LLP | | 2021 |
| Nova Vibe Ltd | Wholesale & retail | 2025 |
| Nova Walhampton 57 LLP | | 2016 |
| Nova Wells 37 LLP | | 2013 |
| Nova Weston 81 LLP | | 2018 |
| Nova Wimborne Square 110 LLP | | 2021 |
| Nova Woodbridge 116 LLP | | 2023 |
| Nova Wyke 103 LLP | | 2021 |
| Nova-Selby Limited | Hospitality | 2025 |
| Novanix Ltd | Professional & scientific | 2025 |
| Novanova Ltd | Professional & scientific | 2007 |
| Novaspark Creative Ltd | Professional & scientific | 2026 |
| Novate Compliance Limited | Professional & scientific | 2008 |
| Novecore Professional Services Ltd. | Professional & scientific | 2022 |
| Novel Leaf Limited | Information & communication | 2025 |
| Novusync Ltd | Information & communication | 2024 |
| NOW and Next Limited | Information & communication | 2026 |
| Nowak Transport Ltd | Transport & logistics | 2026 |
| NOX SOX Ltd | Wholesale & retail | 2017 |
| NP Decor Ltd | Construction | 2024 |
| Npcreativez Limited | Wholesale & retail | 2022 |
| NPO Media Limited | Information & communication | 2023 |
| NR Event Services Ltd | Administrative & support | 2019 |
| NRG Furnishings Ltd | Construction | 2024 |
| NRM Group Limited | Construction | 2019 |
| NRS Trans Limited | Transport & logistics | 2018 |
| NS Mini Mart Ltd | Wholesale & retail | 2025 |
| NS Venture Limited | Wholesale & retail | 2022 |
| NSH Productions Ltd | Information & communication | 2023 |
| NSN Property Group Ltd | Real estate | 2019 |
| NT Coaching Ltd | Arts & recreation | 2025 |
| NU Media House Ltd | Information & communication | 2014 |
| Nu-Tech Engineering Services Limited | Manufacturing | 1984 |
| Nueral Ltd | Information & communication | 2025 |
| Nuffield Engineering Supplies Limited | Other services | 1994 |
| Nuffield Motors Limited | Manufacturing | 2006 |
| Nuffield Radiographic Inspection Ltd. | Professional & scientific | 2003 |
| Nuffield Technologies Ltd. | Information & communication | 2002 |
| Nukod Ltd | Wholesale & retail | 2016 |
| Number 39 Ltd | Construction | 2012 |
| Number Eightytwo Limited | Professional & scientific | 2014 |
| Number One Marine Limited | Manufacturing | 2022 |
| Number Three Development Ltd | Real estate | 2022 |
| Number Two Development Limited | Real estate | 2022 |
| Numbers Enterprises Limited | Wholesale & retail | 2025 |
| Nunbank Flat Management Limited | Households | 1988 |
| Nunes Health & Education Ltd | Education | 2024 |
| Nuovo Modo Limited | Information & communication | 2025 |
| Nuraling Global Ltd | Information & communication | 2024 |
| Nurture Godly Seed Ltd | Education | 2022 |
| Nurture Support Limited | Health & social care | 2021 |
| Nurturing by Nature Ltd. | Manufacturing | 2012 |
| NUS Properties Ltd | Wholesale & retail | 2024 |
| Nuthatch Investments Limited | Real estate | 2018 |
| Nuthatch Limited | Construction | 2019 |
| Nutkase Accessories Limited | Wholesale & retail | 2013 |
| Nutramuse Ltd | Wholesale & retail | 2025 |
| Nutravida Group Ltd | Wholesale & retail | 2025 |
| Nutri Healthcare Limited | Administrative & support | 2019 |
| Nutri MAX Holding Ltd | Wholesale & retail | 2019 |
| Nutrilion Ltd | Wholesale & retail | 2024 |
| Nutrition Advisory Team Limited | Public administration | 2020 |
| Nutrition for Mind and Body Ltd | Health & social care | 2025 |
| NUTS4CRAFTS Ltd | Wholesale & retail | 2026 |
| Nutshell Group Limited | Administrative & support | 2017 |
| Nutty Nation Limited | Wholesale & retail | 2023 |
| Nuvell & Co Limited | Wholesale & retail | 2025 |
| NVM Greenslade Limited | Health & social care | 2024 |
| NVS Media Ltd | Information & communication | 2014 |
| NVS Services Limited | Construction | 2017 |
| NW Consulting Dorset Ltd | Administrative & support | 2009 |
| NWS Engineering Ltd | Professional & scientific | 2020 |
| NX Solutions Limited | Professional & scientific | 2024 |
| NXM Technologies Ltd | Professional & scientific | 2025 |
| Nylax Solutions Ltd | Manufacturing | 2020 |
| Nyuszi Ltd | Information & communication | 2022 |
| NYX Bound Limited | Wholesale & retail | 2025 |
| NZ Carpentry & Building Ltd | Construction | 2010 |
| O & M Property Limited | Real estate | 2020 |
| O'Callaghan Construction Limited | Other services | 2014 |
| O'Loghlen Ltd | Financial services | 2025 |
| O'Neill & Clark Limited | Financial services | 2025 |
| O'Sullivan Building Services Ltd | Construction | 2015 |
| O.C Projects Limited | Wholesale & retail | 2015 |